Friday, May 18, 2012

60,000 feet in 60 seconds


"We are team of well-rounded and talented college students from Southern California that would like to build a record breaking amateur rocket. We have the skills, but unfortunately, not the money to do so. We have successfully flown to 30,000 ft in 30 seconds in April of 2012, and set a National Altitude Record thanks to a wonderful community of sponsors. But now, we look to a wider community for financial support of this challenging project."

This is a cool idea for a project, basically a very small rocket with an N 5800 in it. 60,000 feet should be plenty doable IF (IFF should I say?) the rocket survives and does not suffer extreme delamination. This strikes me as an excellent test of this motor, and a good way to understand hypothetical projects based on this motor such as the frequently discussed N to N to space possibility.

60K in 60

At the same time, CTI has posted this:

CTI is pleased to announced the "Fly the N5800 to a record contest".

Over the last couple of years there have been several attempts to fly a 98mm minimum diameter rocket to extreme altitudes and speeds with the Pro98-6GXL C-STAR N5800 reload. However, AFAWK none of these rockets survived the flight.

CTI would like to encourage others to build a stronger/better rocket and demonstrate that such a flight is actually possible. Therefore this contest.

The winner will be the first to:

  • Fly a minimum diameter 98mm rocket;
  • With Pro98-6GXL C-STAR N5800 reload;
  • Make a full and safe recovery;
  • Obtain the official TRA record for this flight;
  • Flight to take place before end of 2012.
Prize: Two reloads of your choice for the Pro98-6GXL Hardware (or any smaller-sized reloads).

N 5,800 contest

CTI knows they have the meanest motor on the block, almost too mean for this hobby.  Almost...  The greatest gulf between hobby rocket performance and professional rocket performance is in the motor.  We can use composites to get mass fractions pretty good, but those mass fractions are usually already greatly reduced because of the motor and casing.  By making a casing reusable, out of aluminum, and to a safety margin that is extremely high, vendors must compromise on performance.  The N 5800 still suffers from some of these limitations, but it still has great potential.  Under ideal conditions, perhaps launched from a high altitude site, this motor can break 100,000 feet!  That kind of performance was unheard of just 10 years ago when N motors were barely breaking 30,000 feet.  A well built N 5800 is capable of beating the performance of some previous P, Q, and R motor flights.

2 comments:

Unknown said...

Thanks for posting. Wonderful website congrats!

High Power Rocketry said...

Thank you, mystery comment man.